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#define _GNU_SOURCE
#include "platform.h"
#include "windows.c"
#include "mremap.c"
void *GC_mmapAnon (void *start, size_t length) {
return Windows_mmapAnon (start, length);
}
void GC_release (void *base, size_t length) {
Windows_release (base, length);
}
void *GC_extendHead (void *base, size_t length) {
return Windows_mmapAnon (base, length);
}
void *GC_extendTail (void *base, size_t length) {
return Windows_extend (base, length);
}
uintmax_t GC_physMem (void) {
#ifdef _WIN64
MEMORYSTATUSEX memstat;
memstat.dwLength = sizeof(memstat);
GlobalMemoryStatusEx(&memstat);
return (uintmax_t)memstat.ullTotalPhys;
#else
MEMORYSTATUS memstat;
memstat.dwLength = sizeof(memstat);
GlobalMemoryStatus(&memstat);
return (uintmax_t)memstat.dwTotalPhys;
#endif
}
size_t GC_pageSize (void) {
SYSTEM_INFO sysinfo;
GetSystemInfo(&sysinfo);
return (size_t)sysinfo.dwAllocationGranularity;
}
HANDLE fileDesHandle (int fd) {
// The temporary prevents a "cast does not match function type" warning.
intptr_t t;
t = _get_osfhandle (fd);
return (HANDLE)t;
}
int mkstemp (char *template) {
char file_path[255];
char file_name[255];
char templ[4];
if (0 == GetTempPath (sizeof (file_path), file_path))
diee ("unable to make temporary file");
strncpy (templ, template, sizeof (templ) - 1);
templ[sizeof (templ) - 1] = 0x00;
if (0 == GetTempFileName (file_path, templ, 0, file_name))
diee ("unable to make temporary file");
return _open (file_name, _O_CREAT | _O_RDWR, _S_IREAD | _S_IWRITE);
}
/* ------------------------------------------------- */
/* Date */
/* ------------------------------------------------- */
#ifndef __GNUC__
#define EPOCHFILETIME (116444736000000000i64)
#else
#define EPOCHFILETIME (116444736000000000LL)
#endif
/* The basic plan is to get an initial time using GetSystemTime
* that is good up to ~10ms accuracy. From then on, we compute
* using deltas with the high-resolution (> microsecond range)
* performance timers. A 64-bit accumulator holds microseconds
* since (*nix) epoch. This is good for over 500,000 years before
* wrap-around becomes a concern.
*
* However, we might need to watch out for wrap-around with the
* QueryPerformanceCounter, because it could be measuring at a higher
* frequency than microseconds.
*
* This function only strives to allow a program to run for
* 100 years without being restarted.
*/
int gettimeofday (struct timeval *tv,
__attribute__ ((unused)) struct timezone *tz) {
static LARGE_INTEGER frequency; /* ticks/second */
static LARGE_INTEGER baseCounter; /* ticks since last rebase */
static LARGE_INTEGER baseMicroSeconds; /* unix time at last rebase */
LARGE_INTEGER nowCounter;
LARGE_INTEGER deltaCounter;
LARGE_INTEGER nowMicroSeconds;
double deltaMicroseconds;
/* This code is run the first time gettimeofday is called. */
if (frequency.QuadPart == 0) {
FILETIME ft;
/* tzset prepares the localtime function. I don't
* really understand why it's here and not there,
* but this has been the case since before svn logs.
* So I leave it here to preserve the status-quo.
*/
tzset();
QueryPerformanceCounter(&baseCounter);
QueryPerformanceFrequency(&frequency);
if (frequency.QuadPart == 0)
die("no high resolution clock");
GetSystemTimeAsFileTime (&ft);
baseMicroSeconds.LowPart = ft.dwLowDateTime;
baseMicroSeconds.HighPart = ft.dwHighDateTime;
baseMicroSeconds.QuadPart -= EPOCHFILETIME;
baseMicroSeconds.QuadPart /= 10; /* 100ns -> 1ms */
}
/* Use the high res counter ticks to calculate the delta.
* A double has 52+1 bits of precision. This means it can fit
* deltas of up to 9007199254 seconds, or 286 years. We could
* rebase before an overflow, but 286 is already > 100.
*/
QueryPerformanceCounter(&nowCounter);
deltaCounter.QuadPart = nowCounter.QuadPart - baseCounter.QuadPart;
deltaMicroseconds = deltaCounter.QuadPart;
deltaMicroseconds /= frequency.QuadPart;
deltaMicroseconds *= 1000000.0;
nowMicroSeconds.QuadPart =
baseMicroSeconds.QuadPart + deltaMicroseconds;
/* If the frequency too fast, we need to check for wrap around.
* 2**32 seconds is 136 years, so if HighPart == 0 we don't need to
* waste a system call on GetSystemTimeAsFileTime.
*/
if (frequency.HighPart != 0) {
LARGE_INTEGER nowLowResMicroSeconds;
FILETIME ft;
/* Use low res timer to detect performance counter wrap-around. */
GetSystemTimeAsFileTime (&ft);
nowLowResMicroSeconds.LowPart = ft.dwLowDateTime;
nowLowResMicroSeconds.HighPart = ft.dwHighDateTime;
nowLowResMicroSeconds.QuadPart -= EPOCHFILETIME;
nowLowResMicroSeconds.QuadPart /= 10;
/* If deltaMicroseconds deviates by more than a second from the low
* resolution timer, assume the high performance counter has wrapped.
* One second is a safe margin b/c QueryPerformanceFrequency must fit
* in a 64-bit integer. Therefore any wrap must exceed one second.
*/
if (nowMicroSeconds.QuadPart + 1000000 < nowLowResMicroSeconds.QuadPart) {
baseCounter = nowCounter;
baseMicroSeconds = nowLowResMicroSeconds;
nowMicroSeconds = nowLowResMicroSeconds;
}
/* The above wrap-around detection destroys high resolution timing.
* However, if one needs high resolution timing, then one is querying
* gettimeofday quite often. Therefore, rebase the clock before any
* wrap around troubles happen. We don't do this too often as it
* introduces clock drift.
*/
if ((deltaCounter.HighPart & 0xffff0000UL) != 0) {
baseCounter = nowCounter;
baseMicroSeconds = nowMicroSeconds;
}
}
tv->tv_sec = (long)(nowMicroSeconds.QuadPart / 1000000);
tv->tv_usec = (long)(nowMicroSeconds.QuadPart % 1000000);
return 0;
}
/* ------------------------------------------------- */
/* MLton.Itimer */
/* ------------------------------------------------- */
/* We use the kernel's TimerQueues -- see:
* http://msdn.microsoft.com/en-us/library/ms686796(VS.85).aspx
*/
static HANDLE MainThread = NULL;
static HANDLE TimerQueue = NULL;
static HANDLE RealTimer = NULL;
static HANDLE VirtTimer = NULL;
static HANDLE ProfTimer = NULL;
static HANDLE PrioTimer = NULL;
static void (*SIGALRM_handler)(int sig) = SIG_DFL;
static void (*SIGVTAM_handler)(int sig) = SIG_DFL;
static void (*SIGPROF_handler)(int sig) = SIG_DFL;
/* The timer handler is fired in another thread.
* The idea is to suspend the main thread and resume it once we're done.
* This will appear more-or-less the same as if a Unix system had received
* the signal. We will also be firing the handler in the timer thread itself
* for performance reasons (MLton uses this mechanism to do multi-threading).
* This means the signal handlers must be fast, which they are since they
* just mark the signal to be processed later.
*/
static VOID CALLBACK MLton_SIGALRM(__attribute__ ((unused)) PVOID myArg,
__attribute__ ((unused)) BOOLEAN timeout) {
SuspendThread(MainThread);
if (SIGALRM_handler == SIG_IGN) {
/* noop */
} else if (SIGALRM_handler == SIG_DFL) {
die("alarm");
} else {
(*SIGALRM_handler)(SIGALRM);
}
ResumeThread(MainThread);
}
static VOID CALLBACK MLton_SIGVTAM(__attribute__ ((unused)) PVOID myArg,
__attribute__ ((unused)) BOOLEAN timeout) {
SuspendThread(MainThread);
if (SIGVTAM_handler == SIG_IGN) {
/* noop */
} else if (SIGVTAM_handler == SIG_DFL) {
die("vtalarm");
} else {
(*SIGVTAM_handler)(SIGVTALRM);
}
ResumeThread(MainThread);
}
static VOID CALLBACK MLton_SIGPROF(__attribute__ ((unused)) PVOID myArg,
__attribute__ ((unused)) BOOLEAN timeout) {
SuspendThread(MainThread);
if (SIGPROF_handler == SIG_IGN) {
/* noop */
} else if (SIGPROF_handler == SIG_DFL) {
die("sigprof");
} else {
(*SIGPROF_handler)(SIGPROF);
}
ResumeThread(MainThread);
}
static void CALLBACK fixPriority(__attribute__ ((unused)) PVOID myArg,
__attribute__ ((unused)) BOOLEAN timeout) {
SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_ABOVE_NORMAL);
DeleteTimerQueueTimer(TimerQueue, PrioTimer, NULL);
}
static int MLTimer(HANDLE *timer,
const struct itimerval *value,
WAITORTIMERCALLBACK callback) {
DWORD DueTime, Period;
/* Initialize the TimerQueue */
if (MainThread == 0) {
/* This call improves the resolution of the scheduler from
* 16ms to about 2ms in my testing. Sadly it requires winmm.
*/
timeBeginPeriod(1);
TimerQueue = CreateTimerQueue();
if (TimerQueue == NULL) { errno = ENOMEM; return -1; }
/* We need to get the TimerQueue to have higher priority.
* From my testing, if it has the same priority as the main
* thread and the main thread is busy, your best resolution
* is a terribly slow 188ms. By boosting the priority of the
* timer thread to ABOVE_NORMAL, I've gotten down to 2ms.
*/
CreateTimerQueueTimer(&PrioTimer, TimerQueue, fixPriority,
0, 1, 0, WT_EXECUTEINTIMERTHREAD);
/* We need a handle to the main thread usable by the timer
* thread. GetCurrentThread() is a self-reference so we need
* to copy it to a new handle for it to work in other threads.
*/
DuplicateHandle(GetCurrentProcess(), /* source process */
GetCurrentThread(), /* source handle */
GetCurrentProcess(), /* target process */
&MainThread, /* target handle */
0, /* access (ignored) */
FALSE, /* not inheritable */
DUPLICATE_SAME_ACCESS);
if (MainThread == 0) die("Cannot get handle to initial thread");
}
/* Windows uses ms accuracy for TimerQueues */
DueTime = value->it_value.tv_sec * 1000
+ (value->it_value.tv_usec + 999) / 1000;
Period = value->it_interval.tv_sec * 1000
+ (value->it_interval.tv_usec + 999) / 1000;
if (timer != NULL) {
DeleteTimerQueueTimer(TimerQueue, *timer, NULL);
*timer = NULL;
}
if (DueTime == 0) {
return 0;
}
if (!CreateTimerQueueTimer(
timer, /* output: created timer */
TimerQueue, /* The queue which holds the timers */
callback, /* Invoked on timer events */
0, /* myArg for the callback */
DueTime, /* Must be non-zero => time till first event */
Period, /* Time till the event repeats (forever) */
WT_EXECUTEINTIMERTHREAD)) { /* Don't use a thread pool */
errno = ENOMEM;
return -1;
}
return 0;
}
int setitimer (int which,
const struct itimerval *value,
struct itimerval *ovalue) {
if (ovalue != 0) die("setitimer doesn't support retrieving old state");
switch (which) {
case ITIMER_REAL: return MLTimer(&RealTimer, value, &MLton_SIGALRM);
case ITIMER_VIRT: return MLTimer(&VirtTimer, value, &MLton_SIGVTAM);
case ITIMER_PROF: return MLTimer(&ProfTimer, value, &MLton_SIGPROF);
default: errno = EINVAL; return -1;
}
}
static void catcher(__attribute__ ((unused)) int signo) {
CONTEXT context;
context.ContextFlags = CONTEXT_CONTROL;
GetThreadContext(MainThread, &context);
#if defined(__i386__)
GC_handleSigProf((code_pointer) context.Eip);
#elif defined(__x86_64__)
GC_handleSigProf((code_pointer) context.Rip);
#elif defined(_PPC_)
GC_handleSigProf((code_pointer) context.Iar);
#elif defined(_ALPHA_)
GC_handleSigProf((code_pointer) context.Fir);
#elif defined(MIPS)
GC_handleSigProf((code_pointer) context.Fir);
#elif defined(ARM)
GC_handleSigProf((code_pointer) context.Pc);
#else
#error Profiling handler is missing for this architecture
#endif
}
void GC_setSigProfHandler (struct sigaction *sa) {
sa->sa_flags = 0;
sa->sa_handler = (_sig_func_ptr)&catcher;
}
/* ------------------------------------------------- */
/* MLton.Rlimit */
/* ------------------------------------------------- */
static struct rlimit rlimits[RLIM_NLIMITS];
static void initRlimits (void) {
static int done = FALSE;
int lim;
if (done)
return;
done = TRUE;
for (lim = 0; lim < RLIM_NLIMITS; ++lim ) {
rlimits[lim].rlim_cur = 0;
rlimits[lim].rlim_max = UINT_MAX;
}
}
int getrlimit (int resource, struct rlimit *rlp) {
initRlimits ();
if (resource < 0 or resource >= RLIM_NLIMITS) {
errno = EINVAL;
return -1;
}
*rlp = rlimits[resource];
return 0;
}
int setrlimit (int resource, const struct rlimit *rlp) {
initRlimits ();
if (resource < 0 or resource >= RLIM_NLIMITS) {
errno = EINVAL;
return -1;
}
if (rlp->rlim_cur < rlimits[resource].rlim_max)
rlimits[resource].rlim_cur = rlp->rlim_cur;
else {
errno = EPERM;
return -1;
}
rlimits[resource].rlim_max = rlp->rlim_max;
return 0;
}
/* ------------------------------------------------- */
/* MLton.Rusage */
/* ------------------------------------------------- */
/* GetProcessTimes and GetSystemTimeAsFileTime are documented at:
* http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dllproc/base/getprocesstimes.asp
*/
int getrusage (int who, struct rusage *usage) {
/* FILETIME has dw{High,Low}DateTime which store the number of
* 100-nanoseconds since January 1, 1601
*/
FILETIME creation_time;
FILETIME exit_time;
FILETIME kernel_time;
FILETIME user_time;
uint64_t user_usecs, kernel_usecs;
if (who == RUSAGE_CHILDREN) {
// !!! could use exit_time - creation_time from cwait
memset(usage, 0, sizeof(struct rusage));
return 0;
}
if (who != RUSAGE_SELF) {
errno = EINVAL;
return -1;
}
if (GetProcessTimes(GetCurrentProcess(),
&creation_time, &exit_time,
&kernel_time, &user_time) == 0) {
errno = EFAULT;
return -1;
}
kernel_usecs = kernel_time.dwHighDateTime;
kernel_usecs <<= sizeof(kernel_time.dwHighDateTime)*8;
kernel_usecs |= kernel_time.dwLowDateTime;
kernel_usecs /= 10;
user_usecs = user_time.dwHighDateTime;
user_usecs <<= sizeof(user_time.dwHighDateTime)*8;
user_usecs |= user_time.dwLowDateTime;
user_usecs /= 10;
usage->ru_utime.tv_sec = user_usecs / 1000000;
usage->ru_utime.tv_usec = user_usecs % 1000000;
usage->ru_stime.tv_sec = kernel_usecs / 1000000;
usage->ru_stime.tv_usec = kernel_usecs % 1000000;
return 0;
}
/* ------------------------------------------------- */
/* OS.IO */
/* ------------------------------------------------- */
__attribute__ ((noreturn))
int poll (__attribute__ ((unused)) struct pollfd *ufds,
__attribute__ ((unused)) unsigned int nfds,
__attribute__ ((unused)) int timeout) {
die ("poll not implemented");
}
/* ------------------------------------------------- */
/* Posix.FileSys */
/* ------------------------------------------------- */
static void GetWin32FileName (int fd, char* fname) {
HANDLE fh, fhmap;
DWORD fileSize, fileSizeHi;
void* pMem = NULL;
intptr_t tmp;
tmp = _get_osfhandle (fd);
fh = (HANDLE)tmp;
fileSize = GetFileSize (fh, &fileSizeHi);
fhmap = CreateFileMapping (fh, NULL, PAGE_READONLY, 0, fileSize, NULL);
if (fhmap) {
pMem = MapViewOfFile (fhmap, FILE_MAP_READ, 0, 0, 1);
if (pMem) {
GetMappedFileNameA (GetCurrentProcess(),
pMem, fname, MAX_PATH);
UnmapViewOfFile (pMem);
}
CloseHandle (fhmap);
}
}
int fchmod (int filedes, mode_t mode) {
char fname[MAX_PATH + 1];
GetWin32FileName (filedes, fname);
return _chmod (fname, mode);
}
int fchdir (int filedes) {
char fname[MAX_PATH + 1];
GetWin32FileName (filedes, fname);
return chdir (fname);
}
__attribute__ ((noreturn))
int chown (__attribute__ ((unused)) const char *path,
__attribute__ ((unused)) uid_t owner,
__attribute__ ((unused)) gid_t group) {
die ("chown not implemented");
}
__attribute__ ((noreturn))
int fchown (__attribute__ ((unused)) int fd,
__attribute__ ((unused)) uid_t owner,
__attribute__ ((unused)) gid_t group) {
die ("fchown not implemented");
}
__attribute__ ((noreturn))
long fpathconf (__attribute__ ((unused)) int filedes,
__attribute__ ((unused)) int name) {
die ("fpathconf not implemented");
}
__attribute__ ((noreturn))
int link (__attribute__ ((unused)) const char *oldpath,
__attribute__ ((unused)) const char *newpath) {
die ("link not implemented");
}
int lstat (const char *file_name, struct stat *buf) {
/* Win32 doesn't really have links. */
return stat (file_name, buf);
}
__attribute__ ((noreturn))
int mkfifo (__attribute__ ((unused)) const char *pathname,
__attribute__ ((unused)) mode_t mode) {
die ("mkfifo not implemented");
}
__attribute__ ((noreturn))
long pathconf (__attribute__ ((unused)) const char *path,
__attribute__ ((unused)) int name) {
die ("pathconf not implemented");
}
__attribute__ ((noreturn))
int readlink (__attribute__ ((unused)) const char *path,
__attribute__ ((unused)) char *buf,
__attribute__ ((unused)) size_t bufsiz) {
die ("readlink not implemented");
}
__attribute__ ((noreturn))
int symlink (__attribute__ ((unused)) const char *oldpath,
__attribute__ ((unused)) const char *newpath) {
die ("symlink not implemented");
}
int truncate (const char *path, off_t len) {
int fd;
if ((fd = open(path, O_RDWR)) == -1)
return -1;
if (ftruncate(fd, len) < 0) {
close(fd);
return -1;
}
close(fd);
return 0;
}
/* ------------------------------------------------- */
/* Posix.IO */
/* ------------------------------------------------- */
__attribute__ ((noreturn))
int fcntl (__attribute__ ((unused)) int fd,
__attribute__ ((unused)) int cmd,
...) {
die ("fcntl not implemented");
}
int fsync (int fd) {
return _commit (fd);
}
int pipe (int filedes[2]) {
HANDLE read_h;
HANDLE write_h;
/* We pass no security attributes (0), so the current policy gets
* inherited. The pipe is set to NOT stay open in child processes.
* This will be corrected using DuplicateHandle in create()
* The 4k buffersize is choosen b/c that's what linux uses.
*/
if (!CreatePipe(&read_h, &write_h, 0, 4096)) {
errno = ENOMEM; /* fake errno: out of resources */
return -1;
}
/* This requires Win98+
* Choosing text/binary mode is defered till a later setbin/text call
*/
filedes[0] = _open_osfhandle((intptr_t)read_h, _O_RDONLY);
filedes[1] = _open_osfhandle((intptr_t)write_h, _O_WRONLY);
if (filedes[0] == -1 or filedes[1] == -1) {
if (filedes[0] == -1)
CloseHandle(read_h);
else close(filedes[0]);
if (filedes[1] == -1)
CloseHandle(write_h);
else close(filedes[1]);
errno = ENFILE;
return -1;
}
return 0;
}
/* ------------------------------------------------- */
/* Posix.ProcEnv */
/* ------------------------------------------------- */
__attribute__ ((noreturn))
char *ctermid (__attribute__ ((unused)) char* s) {
die ("*ctermid not implemented");
}
__attribute__ ((noreturn))
gid_t getegid (void) {
die ("getegid not implemented");
}
__attribute__ ((noreturn))
uid_t geteuid (void) {
die ("geteuid not implemented");
}
__attribute__ ((noreturn))
gid_t getgid (void) {
die ("getgid not implemented");
}
__attribute__ ((noreturn))
int getgroups (__attribute__ ((unused)) int size,
__attribute__ ((unused)) gid_t list[]) {
die ("getgroups not implemented");
}
__attribute__ ((noreturn))
char *getlogin (void) {
die ("getlogin not implemented");
}
__attribute__ ((noreturn))
pid_t getpgid(__attribute__ ((unused)) pid_t pid) {
die ("getpgid not implemented");
}
__attribute__ ((noreturn))
pid_t getpgrp(void) {
die ("getpgrp not implemented");
}
__attribute__ ((noreturn))
pid_t getppid (void) {
die ("getppid not implemented");
}
__attribute__ ((noreturn))
uid_t getuid (void) {
die ("getuid not implemented");
}
int setenv (const char *name, const char *value, int overwrite) {
/* We could use _putenv, but then we'd need a temporary buffer for
* use to concat name=value.
*/
if (not overwrite and getenv (name)) {
errno = EEXIST;
return -1; /* previous mingw setenv was buggy and returned 0 */
}
if (SetEnvironmentVariable (name, value)) {
errno = ENOMEM; /* this happens often in Windows.. */
return -1;
}
return 0;
}
__attribute__ ((noreturn))
int setgid (__attribute__ ((unused)) gid_t gid) {
die ("setgid not implemented");
}
__attribute__ ((noreturn))
int setgroups (__attribute__ ((unused)) size_t size,
__attribute__ ((unused)) const gid_t *list) {
die ("setgroups not implemented");
}
__attribute__ ((noreturn))
int setpgid (__attribute__ ((unused)) pid_t pid,
__attribute__ ((unused)) pid_t pgid) {
die ("setpgid not implemented");
}
__attribute__ ((noreturn))
pid_t setsid (void) {
die ("setsid not implemented");
}
__attribute__ ((noreturn))
int setuid (__attribute__ ((unused)) uid_t uid) {
die ("setuid not implemented");
}
__attribute__ ((noreturn))
long sysconf (__attribute__ ((unused)) int name) {
die ("sysconf not implemented");
}
__attribute__ ((noreturn))
clock_t times (__attribute__ ((unused)) struct tms *buf) {
die ("times not implemented");
}
__attribute__ ((noreturn))
char *ttyname (__attribute__ ((unused)) int desc) {
die ("*ttyname not implemented");
}
static void setMachine (struct utsname *buf) {
int level;
const char* platform = "unknown";
SYSTEM_INFO si;
GetSystemInfo (&si);
level = si.dwProcessorType;
switch (si.wProcessorArchitecture) {
case PROCESSOR_ARCHITECTURE_INTEL:
if (level < 3) level = 3;
if (level > 6) level = 6;
platform = "i%d86";
break;
case PROCESSOR_ARCHITECTURE_IA64: platform = "ia64"; break;
case PROCESSOR_ARCHITECTURE_AMD64: platform = "amd64"; break;
case PROCESSOR_ARCHITECTURE_PPC: platform = "ppc"; break;
case PROCESSOR_ARCHITECTURE_ALPHA: platform = "alpha"; break;
case PROCESSOR_ARCHITECTURE_MIPS: platform = "mips"; break;
case PROCESSOR_ARCHITECTURE_ARM: platform = "arm"; break;
case PROCESSOR_ARCHITECTURE_ALPHA64: platform = "alpha64"; break;
/* SHX? MSIL? IA32_ON_WIN64? */
default: platform = "unknown"; break;
}
sprintf (buf->machine, platform, level);
}
static void setSysname (struct utsname *buf) {
OSVERSIONINFOEX osv;
const char* os = "??";
#ifndef _WIN64
/* Call GetNativeSystemInfo if supported or GetSystemInfo otherwise. */
SYSTEM_INFO si;
void (WINAPI *pGNSI)(LPSYSTEM_INFO);
pGNSI = (void(WINAPI *)(LPSYSTEM_INFO))
GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")),
"GetNativeSystemInfo");
if (NULL != pGNSI)
pGNSI(&si);
else
GetSystemInfo(&si);
#endif
osv.dwOSVersionInfoSize = sizeof (osv);
/* Try to get extended information in order to be able to match the O.S. more
precisely using osv.wProductType */
if (! GetVersionEx ((OSVERSIONINFO *)(void*) &osv)) {
ZeroMemory(&osv, sizeof(OSVERSIONINFOEX));
osv.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx((OSVERSIONINFO *)(void*) &osv);
}
switch (osv.dwPlatformId) {
case VER_PLATFORM_WIN32_NT:
#ifdef _WIN64
if (osv.dwMinorVersion == 0) {
if (osv.dwMajorVersion <= 6) {
if (osv.wProductType == VER_NT_WORKSTATION)
os = "Vista_64";
else
os = "2008_64";
} else os = "NTx_64";
} else if (osv.dwMinorVersion <= 2) os = "XP_64";
else os = "NTx_64";
#else
if (osv.dwMinorVersion == 0) {
if (osv.dwMajorVersion <= 4) os = "NT";
else if (osv.dwMajorVersion <= 5) os = "2000";
else {
if (osv.wProductType == VER_NT_WORKSTATION) {
if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64)
os = "Vista_WOW64";
else
os = "Vista";
} else {
if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64)
os = "2008";
else
os = "2008_WOW64";
}
}
} else if (osv.dwMinorVersion <= 1) os = "XP";
else if (osv.dwMinorVersion <= 2) {
if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64)
os = "XP_WOW64";
else
os = "2003";
} else os = "NTx";
#endif
break;
case VER_PLATFORM_WIN32_WINDOWS:
if (osv.dwMinorVersion == 0) os = "95";
else if (osv.dwMinorVersion < 90) os = "98";
else if (osv.dwMinorVersion == 90) os = "Me";
else os = "9X";
break;
case VER_PLATFORM_WIN32s:
os = "31"; /* aka DOS + Windows 3.1 */
break;
default:
os = "unknown";
break;
}
#ifdef _WIN64
#define mingw_name "MINGW64"
#else
#define mingw_name "MINGW32"
#endif
sprintf (buf->sysname, "%s_%s-%d.%d", mingw_name,
os, (int)osv.dwMajorVersion, (int)osv.dwMinorVersion);
}
int uname (struct utsname *buf) {
MLton_initSockets(); /* needed for gethostname */
setMachine (buf);
setSysname (buf);
unless (0 == gethostname (buf->nodename, sizeof (buf->nodename))) {
strcpy (buf->nodename, "unknown");
}
#ifdef _WIN64
sprintf (buf->release, "%d", __MINGW64_VERSION_MINOR);
sprintf (buf->version, "%d", __MINGW64_VERSION_MAJOR);
#else
sprintf (buf->release, "%d", __MINGW32_MINOR_VERSION);
sprintf (buf->version, "%d", __MINGW32_MAJOR_VERSION);
#endif
return 0;
}
/* ------------------------------------------------- */
/* Posix.Process */
/* ------------------------------------------------- */
int alarm (int secs) {
struct itimerval new;
new.it_interval.tv_usec = 0;
new.it_interval.tv_sec = 0;
new.it_value.tv_usec = 0;
new.it_value.tv_sec = secs;
return setitimer(ITIMER_REAL, &new, 0);
}
__attribute__ ((noreturn))
int fork (void) {
die ("fork not implemented");
}
int kill (pid_t pid, int sig) {
HANDLE h = (HANDLE)pid;
unless (TerminateProcess (h, SIGNALLED_BIT | sig)) {
errno = ECHILD;
return -1;
}
return 0;
}
int nanosleep (const struct timespec *req, struct timespec *rem) {
Sleep (req->tv_sec * 1000 + (req->tv_nsec + 999999) / 1000000);
rem->tv_nsec = 0;
rem->tv_sec = 0;
return 0;
}
__attribute__ ((noreturn))
int pause (void) {
die ("pause not implemented");
}
unsigned int sleep (unsigned int seconds) {
Sleep (seconds * 1000);
return 0;
}
__attribute__ ((noreturn))
pid_t wait (__attribute__ ((unused)) int *status) {
die ("wait not implemented");
}
pid_t waitpid (pid_t pid, int *status, int options) {
HANDLE h;
DWORD delay;
/* pid <= 0 is handled in stub-mingw.sml */
h = (HANDLE)pid;
delay = ((options & WNOHANG) != 0) ? 0 : INFINITE;
switch (WaitForSingleObject (h, delay)) {
case WAIT_OBJECT_0: /* process has exited */
break;
case WAIT_TIMEOUT: /* process has not exited */
return 0;
default: /* some sort of error */
errno = ECHILD;
return -1;
}
unless (GetExitCodeProcess (h, (DWORD*)status)) {
errno = ECHILD;
return -1;
}
return pid;
}
/* ------------------------------------------------- */
/* Signals */
/* ------------------------------------------------- */
int sigaction (int signum,
const struct sigaction *newact,
struct sigaction *oldact) {
_sig_func_ptr old;
if (signum < 0 or signum >= NSIG) {
errno = EINVAL;
return -1;
}
switch (signum) {
case SIGKILL:
case SIGSTOP:
errno = EINVAL;
return -1;
case SIGALRM:
old = SIGALRM_handler;
if (newact) SIGALRM_handler = newact->sa_handler;
break;
case SIGVTALRM:
old = SIGVTAM_handler;
if (newact) SIGVTAM_handler = newact->sa_handler;
break;
case SIGPROF:
old = SIGPROF_handler;
if (newact) SIGPROF_handler = newact->sa_handler;
break;
default:
old = signal (signum, newact?newact->sa_handler:0);
if (!newact) signal (signum, old);
break;
}
if (oldact)
oldact->sa_handler = old;
return 0;
}
int sigaddset (sigset_t *set, const int signum) {
if (signum < 0 or signum >= NSIG) {
errno = EINVAL;
return -1;
}
*set |= SIGTOMASK (signum);
return 0;
}
int sigdelset (sigset_t *set, const int signum) {
if (signum < 0 or signum >= NSIG) {
errno = EINVAL;
return -1;
}
*set &= ~SIGTOMASK (signum);
return 0;
}
int sigemptyset (sigset_t *set) {
*set = (sigset_t) 0;
return 0;
}
int sigfillset (sigset_t *set) {
*set = ~((sigset_t) 0);
return 0;
}
int sigismember (const sigset_t *set, const int signum) {
if (signum < 0 or signum >= NSIG) {
errno = EINVAL;
return -1;
}
return (*set & SIGTOMASK(signum)) ? 1 : 0;
}
/* With a bit of work and a redirected signal() function, we could
* probably emulate these methods properly. AtM blocking is a lie.
*/
static sigset_t signals_blocked = 0;
static sigset_t signals_pending = 0;
int sigpending (sigset_t *set) {
*set = signals_pending;
return 0;
}
int sigprocmask (int how, const sigset_t *set, sigset_t *oldset) {
if (oldset) {
*oldset = signals_blocked;
}
if (set) {
sigset_t newmask = signals_blocked;
switch (how) {
case SIG_BLOCK:
/* add set to current mask */
newmask |= *set;
break;
case SIG_UNBLOCK:
/* remove set from current mask */
newmask &= ~*set;
break;
case SIG_SETMASK:
/* just set it */
newmask = *set;
break;
default:
return -1;
}
signals_blocked = newmask;
}
return 0;
}
__attribute__ ((noreturn))
int sigsuspend (__attribute__ ((unused)) const sigset_t *mask) {
die("sigsuspend is unimplemented, but could be hacked in if needed");
}
/* ------------------------------------------------- */
/* Posix.IO */
/* ------------------------------------------------- */
void Posix_IO_setbin (C_Fd_t fd) {
_setmode (fd, _O_BINARY);
}
void Posix_IO_settext (C_Fd_t fd) {
_setmode (fd, _O_TEXT);
}
/* ------------------------------------------------- */
/* Posix.SysDB.Passwd */
/* ------------------------------------------------- */
#define INFO_LEVEL 3
static LPUSER_INFO_3 usrData = NULL;
static struct passwd passwd;
__attribute__ ((noreturn))
struct group *getgrgid (__attribute__ ((unused)) gid_t gid) {
die ("getgrgid not implemented");
}
__attribute__ ((noreturn))
struct group *getgrnam (__attribute__ ((unused)) const char *name) {
die ("getgrnam not implemented");
}
struct passwd *getpwnam (__attribute__ ((unused)) const char *name) {
return NULL;
// unless (NERR_Success ==
// NetUserGetInfo (NULL, (LPCWSTR)name, INFO_LEVEL,
// (LPBYTE*)&usrData))
// return NULL;
passwd.pw_dir = (char*)usrData->usri3_home_dir;
passwd.pw_gid = usrData->usri3_primary_group_id;
passwd.pw_name = (char*)usrData->usri3_name;
passwd.pw_shell = (char*)usrData->usri3_script_path;
passwd.pw_uid = usrData->usri3_user_id;
return &passwd;
}
__attribute__ ((noreturn))
struct passwd *getpwuid (__attribute__ ((unused)) uid_t uid) {
die ("getpwuid not implemented");
}
/* ------------------------------------------------- */
/* Posix.TTY */
/* ------------------------------------------------- */
__attribute__ ((noreturn))
speed_t cfgetispeed (__attribute__ ((unused)) struct termios *termios_p) {
die ("cfgetispeed not implemented");
}
__attribute__ ((noreturn))
speed_t cfgetospeed (__attribute__ ((unused)) struct termios *termios_p) {
die ("cfgetospeed not implemented");
}
__attribute__ ((noreturn))
int cfsetispeed (__attribute__ ((unused)) struct termios *termios_p,
__attribute__ ((unused)) speed_t speed) {
die ("cfsetispeed not implemented");
}
__attribute__ ((noreturn))
int cfsetospeed (__attribute__ ((unused)) struct termios *termios_p,
__attribute__ ((unused)) speed_t speed) {
die ("cfsetospeed not implemented");
}
__attribute__ ((noreturn))
int tcdrain (__attribute__ ((unused)) int fd) {
die ("tcdrain not implemented");
}
__attribute__ ((noreturn))
int tcflow (__attribute__ ((unused)) int fd,
__attribute__ ((unused)) int action) {
die ("tcflow not implemented");
}
__attribute__ ((noreturn))
int tcflush (__attribute__ ((unused)) int fd,
__attribute__ ((unused)) int queue_selector) {
die ("tcflush not implemented");
}
__attribute__ ((noreturn))
int tcgetattr (__attribute__ ((unused)) int fd,
__attribute__ ((unused)) struct termios *termios_p) {
die ("tcgetattr not implemented");
}
__attribute__ ((noreturn))
pid_t tcgetpgrp (__attribute__ ((unused)) int fd) {
die ("tcgetpgrp not implemented");
}
__attribute__ ((noreturn))
int tcsendbreak (__attribute__ ((unused)) int fd,
__attribute__ ((unused)) int duration) {
die ("tcsendbreak not implemented");
}
__attribute__ ((noreturn))
int tcsetattr (__attribute__ ((unused)) int fd,
__attribute__ ((unused)) int optional_actions,
__attribute__ ((unused)) struct termios *termios_p) {
die ("tcsetattr not implemented");
}
__attribute__ ((noreturn))
int tcsetpgrp (__attribute__ ((unused)) int fd,
__attribute__ ((unused)) pid_t pgrpid) {
die ("tcsetpgrp not implemented");
}
/* ------------------------------------------------- */
/* Socket */
/* ------------------------------------------------- */
__attribute__ ((noreturn))
int ioctl (__attribute__ ((unused)) int d,
__attribute__ ((unused)) int request,
...) {
die ("ioctl not implemented");
}
__attribute__ ((noreturn))
int socketpair (__attribute__ ((unused)) int d,
__attribute__ ((unused)) int type,
__attribute__ ((unused)) int protocol,
__attribute__ ((unused)) int sv[2]) {
die ("socketpair not implemented");
}
void MLton_initSockets (void) {
static Bool isInitialized = FALSE;
WORD version;
WSADATA wsaData;
unless (isInitialized) {
isInitialized = TRUE;
version = MAKEWORD (2,2);
WSAStartup (version, &wsaData);
}
}
/* This table was constructed with help of
* http://msdn.microsoft.com/en-us/library/ms740668(VS.85).aspx#winsock.wsaenotsock_2
* man errno(3)
*/
void MLton_fixSocketErrno (void) {
int status = WSAGetLastError ();
switch (status) {
case 0: errno = 0; break;
case WSAEINTR: errno = EINTR; break;
case WSAEBADF: errno = EBADF; break;
case WSAEACCES: errno = EACCES; break;
case WSAEFAULT: errno = EFAULT; break;
case WSAEINVAL: errno = EINVAL; break;
case WSAEMFILE: errno = EMFILE; break;
case WSAEWOULDBLOCK: errno = EWOULDBLOCK; break;
case WSAEINPROGRESS: errno = EINPROGRESS; break;
case WSAEALREADY: errno = EALREADY; break;
case WSAENOTSOCK: errno = ENOTSOCK; break;
case WSAEDESTADDRREQ: errno = EDESTADDRREQ; break;
case WSAEMSGSIZE: errno = EMSGSIZE; break;
case WSAEPROTOTYPE: errno = EPROTOTYPE; break;
case WSAENOPROTOOPT: errno = ENOPROTOOPT; break;
case WSAEPROTONOSUPPORT: errno = EPROTONOSUPPORT; break;
case WSAESOCKTNOSUPPORT: errno = ESOCKTNOSUPPORT; break;
case WSAEOPNOTSUPP: errno = EOPNOTSUPP; break;
case WSAEPFNOSUPPORT: errno = EPFNOSUPPORT; break;
case WSAEAFNOSUPPORT: errno = EAFNOSUPPORT; break;
case WSAEADDRINUSE: errno = EADDRINUSE; break;
case WSAEADDRNOTAVAIL: errno = EADDRNOTAVAIL; break;
case WSAENETDOWN: errno = ENETDOWN; break;
case WSAENETUNREACH: errno = ENETUNREACH; break;
case WSAENETRESET: errno = ENETRESET; break;
case WSAECONNABORTED: errno = ECONNABORTED; break;
case WSAECONNRESET: errno = ECONNRESET; break;
case WSAENOBUFS: errno = ENOBUFS; break;
case WSAEISCONN: errno = EISCONN; break;
case WSAENOTCONN: errno = ENOTCONN; break;
case WSAESHUTDOWN: errno = ESHUTDOWN; break;
case WSAETIMEDOUT: errno = ETIMEDOUT; break;
case WSAECONNREFUSED: errno = ECONNREFUSED; break;
case WSAELOOP: errno = ELOOP; break;
case WSAENAMETOOLONG: errno = ENAMETOOLONG; break;
case WSAEHOSTDOWN: errno = EHOSTDOWN; break;
case WSAEHOSTUNREACH: errno = EHOSTUNREACH; break;
case WSAENOTEMPTY: errno = ENOTEMPTY; break;
case WSAEDQUOT: errno = EDQUOT; break;
case WSAESTALE: errno = ESTALE; break;
case WSAEREMOTE: errno = EREMOTE; break;
/* These codes appear to have a matching name, but the manual
* descriptions of what the error codes mean seem to differ
*/
case WSAEUSERS: errno = EUSERS; break;
case WSAECANCELLED: errno = ECANCELED; break;
case WSA_E_CANCELLED: errno = ECANCELED; break;
/* These codes have no matching code in the errno(3) man page. */
case WSAEPROCLIM: errno = EBUSY; break;
case WSAETOOMANYREFS: errno = ENOMEM; break;
case WSAEDISCON: errno = ESHUTDOWN; break;
case WSA_E_NO_MORE:
case WSAENOMORE:
case WSASYSCALLFAILURE: errno = EIO; break;
/* These codes are returned from the OS and subject to chage */
// WSA_INVALID_HANDLE
// WSA_NOT_ENOUGH_MEMORY
// WSA_INVALID_PARAMETER
// WSA_OPERATION_ABORTED
// WSA_IO_INCOMPLETE
// WSA_IO_PENDING
/* These codes mean some sort of windows specific fatal error */
case WSASYSNOTREADY:
case WSAVERNOTSUPPORTED:
case WSANOTINITIALISED:
case WSAEINVALIDPROCTABLE:
case WSAEINVALIDPROVIDER:
case WSAEPROVIDERFAILEDINIT:
case WSASERVICE_NOT_FOUND:
case WSATYPE_NOT_FOUND:
die("Problem loading winsock");
case WSAEREFUSED:
case WSAHOST_NOT_FOUND:
case WSATRY_AGAIN:
case WSANO_RECOVERY:
case WSANO_DATA:
die("Strange winsock specific status code");
default:
die("Unknown winsock status code");
}
}
static const char *MLton_strerrorExtension(int code) {
switch (code) {
case EINTR: return "Interrupted function call";
case EBADF: return "Bad file descriptor";
case EACCES: return "Permission denied";
case EFAULT: return "Bad address";
case EINVAL: return "Invalid argument";
case EMFILE: return "Too many open files";
case EAGAIN: return "Resource temporarily unavailable";
case EINPROGRESS: return "Operation in progress";
case EALREADY: return "Connection already in progress";
case ENOTSOCK: return "Not a socket";
case EDESTADDRREQ: return "Destination address required";
case EMSGSIZE: return "Message too long";
case EPROTOTYPE: return "Protocol wrong type for socket";
case ENOPROTOOPT: return "Protocol not available";
case EPROTONOSUPPORT: return "Protocol not supported";
case ESOCKTNOSUPPORT: return "Socket type not supported";
case EOPNOTSUPP: return "Operation not supported on socket";
case EPFNOSUPPORT: return "Protocol family not supported";
case EAFNOSUPPORT: return "Address family not supported";
case EADDRINUSE: return "Address already in use";
case EADDRNOTAVAIL: return "Address not available";
case ENETDOWN: return "Network is down";
case ENETUNREACH: return "Network unreachable";
case ENETRESET: return "Connection aborted by network";
case ECONNABORTED: return "Connection aborted";
case ECONNRESET: return "Connection reset";
case ENOBUFS: return "No buffer space available";
case EISCONN: return "Socket is connected";
case ENOTCONN: return "The socket is not connected";
case ESHUTDOWN: return "Cannot send after transport endpoint shutdown";
case ETIMEDOUT: return "Connection timed out";
case ECONNREFUSED: return "Connection refused";
case ELOOP: return "Too many levels of symbolic links";
case ENAMETOOLONG: return "Filename too long";
case EHOSTDOWN: return "Host is down";
case EHOSTUNREACH: return "Host is unreachable";
case ENOTEMPTY: return "Directory not empty";
case EDQUOT: return "Disk quota exceeded";
case ESTALE: return "Stale file handle";
case EREMOTE: return "Object is remote";
case EUSERS: return "Too many users";
case ECANCELED: return "Operation canceled";
default: return "Unknown error";
}
}
/* MinGW strerror works for all system-defined errno values.
* However, platform/mingw.h adds some missing POSIX networking error codes.
* It defines these codes as their closest-equivalent winsock error code.
* To report network errors, MLton_fixSocketErrno maps winsock errors to
* their closest POSIX errno value.
*
* This function must handle the winsock errno values we have added.
* FormatMessage doesn't return the POSIX string for errors, and it uses
* the current locale's language. The MinGW strerror is always English.
*
* Thus, we just make a big English table to augment strerror.
* The descriptions are taken from man errno(3).
*/
char *MLton_strerror(int code) {
static char buffer[80];
#undef strerror
if (code < sys_nerr) return strerror(code);
#define strerror MLton_strerror
strcpy(buffer, MLton_strerrorExtension(code));
return buffer;
}
int MLton_recv(int s, void *buf, int len, int flags) {
int ret, status = 0;
if (flags & MSG_DONTWAIT) MinGW_setNonBlock(s);
ret = recv(s, buf, len, flags & ~MSG_DONTWAIT);
/* We need to preserve the error status across non-blocking call */
if (ret == -1) status = WSAGetLastError();
if (flags & MSG_DONTWAIT) MinGW_clearNonBlock(s);
if (ret == -1) WSASetLastError(status);
return ret;
}
int MLton_recvfrom(int s, void *buf, int len, int flags, void *from,
socklen_t *fromlen) {
int ret, status = 0;
if (flags & MSG_DONTWAIT) MinGW_setNonBlock(s);
ret = recvfrom(s, buf, len, flags & ~MSG_DONTWAIT, from, fromlen);
/* We need to preserve the error status across non-blocking call */
if (ret == -1) status = WSAGetLastError();
if (flags & MSG_DONTWAIT) MinGW_clearNonBlock(s);
if (ret == -1) WSASetLastError(status);
return ret;
}
/* ------------------------------------------------- */
/* Syslog */
/* ------------------------------------------------- */
static const char* logident = "<unknown>";
static int logopt = LOG_PERROR;
static int logfacility = LOG_LOCAL0;
void openlog(const char* ident, int opt, int facility) {
logident = ident;
logopt = opt;
logfacility = facility;
}
void closelog(void) {
}
void syslog(int priority, __attribute__ ((unused)) const char* fmt, const char* msg) {
static const char* severity[] = {
"debug",
"informational",
"notice",
"warning",
"error",
"CRITICAL",
"ALERT",
"EMERGENCY"
};
if (priority < 0) priority = LOG_DEBUG;
if (priority > LOG_EMERG) priority = LOG_EMERG;
/* !!! Use ReportEvent to log with windows */
if ((logopt & LOG_PERROR) != 0) {
if ((logopt & LOG_PID) != 0)
fprintf(stderr, "%s(%d): %s: %s\n", logident, getpid(), severity[priority], msg);
else
fprintf(stderr, "%s: %s: %s\n", logident, severity[priority], msg);
}
}
/* ------------------------------------------------- */
/* MinGW */
/* ------------------------------------------------- */
C_Size_t MinGW_getTempPath(C_Size_t buf_size, Array(Char8_t) buf) {
return GetTempPath(buf_size, (char*)buf);
}
void MinGW_setNonBlock(C_Fd_t fd) {
unsigned long yes = 1;
ioctlsocket(fd, FIONBIO, &yes);
}
void MinGW_clearNonBlock(C_Fd_t fd) {
unsigned long no = 0;
ioctlsocket(fd, FIONBIO, &no);
}
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